S. Poloma

Yield decline of sweet potato in the humid lowlands of Papua New Guinea

A. Hartemink, K. Powell, S. Poloma, 2000 .

Nitrogen use efficiency of taro and sweet potato in the humid lowlands of Papua New Guinea

A. Hartemink, S. Poloma, J. O’Sullivan, 2000 .

Sweet Potato Weevil ( Cylas formicarius ) Incidence in the Humid Lowlands of PNG

K. Powell, S. Poloma, J. F. Egenae, 2001 .

Integrated nutrient management research on sweet potato at Hobu, Morobe Province

A. Hartemink, S. Poloma, J. O’Sullivan, 2001 .